Spoiler Free Review.
Avengers Endgame is probably the best movie in history. The Russo brothers, fill this movie with every type of gerne you can possibly think of. It has just the right amount of action to where it isn't boring, and the right amount of talking to where it isn't all action. It also has a perfect amount of Comedy, filled with, I would even say Romance. Some people would say how can you have Comody, Romance, and Action all in one movie. Well this movie is so good, it has them all with the perfect amount of each. If your a Marvel fan for sure watch this, and if your not a marvel fan, this movie is so good, you should watch it. People who aren't Marvel fans are probably like I don't want to watch the other 25 movies just to understand this one. Like I said though, the Russo brothers perfectly display each character and their backstory sort of. So you can understand what's going on without watching the other movies. You probably should watch and Infinity war though. That is the only one that is important. But if you want the full understanding, not just the "I get the movie, but it is a little confusing still," then watch Antman And the Wasp, maybe Thor Ragnarock, Age of Altron, and Infinity war. Mainly though, you need to watch Infinity War. Avengers Endgame just hit $1.2 billion on like the third day, and has 96% Rotten Tomatoes. That is how good it is.